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IBAN Validator
Enter an IBAN, BIC/SWIFT code or US routing number to check its supported structure and check digits. For an IBAN, see bank, branch and account fields when that country's format defines them.
Results
Interactive intelligence tool
Run the check, then ship the workflow
Use the browser tool for a fast answer, then move the same logic into scripts, monitoring, or product flows when it becomes repeatable.
Review decision-ready signals
Outputs highlight statuses, risks, records, and next actions instead of raw provider noise.
Automate the workflow that works
Use the request and response examples to turn a one-off check into an API call or recipe.
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What this tool helps you decide
Each page is shaped around a practical operational question, not just a raw lookup.
See the current DNS, registration, security, pricing, or reputation evidence.
Compare the result with related checks so the next move is easier to trust.
Copy examples, open linked tools, or move into API documentation when you need scale.
Trust signals before you integrate
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Key Features
Country-specific IBAN checks
For countries with a format in the SWIFT IBAN Registry, check the country-specific length, structure and MOD 97 check digits. For some IBAN-issuing countries without a supported registry format, checks are limited to basic length bounds and the IBAN checksum.
Bank code and account
Bank, branch and account fields are extracted only where the country's IBAN format defines them. These are decoded from the IBAN; they are not confirmed by a bank lookup.
Private by design
Validation runs entirely on our side. Account numbers are never sent to anyone else and are not kept in request logs.
Example request
POST /v1/bank/validate
{"iban": "DE89 3704 0044 0532 0130 00", "bic": "COBADEFFXXX"}POST /v1/bank/validate
{"routing_number": "021000021"}Built on the same API
The browser experience previews DomScan's structured endpoints, so teams can validate a use case before writing code.
Frequently asked questions
Does a valid IBAN mean the account exists?
No. A pass means the supported country-format checks and IBAN check digits passed. It does not show that an account exists, is open, can receive a payment or belongs to the intended payee. Domestic bank-specific check digits are not checked.
What else can I check?
BIC and SWIFT codes, including whether the code is a test code, and US ABA routing numbers with their check digit and Federal Reserve district. Through the API you can check an IBAN and a BIC together and see whether they belong to the same country.
Why is my IBAN shown as not valid?
The result lists detected issues, such as an unknown country, wrong length, invalid characters, a structure mismatch or check digits that fail. Check the country prefix and compare the number with a trusted source; a format pass cannot confirm that the account is valid or open.